The GTM Supercar Build Log

Driving and Tuning

Everything has been running great since doing the coolant leak fix and getting the AC running. Just ticked past 2200 miles today and set a new record for ‘number of cameras sticking out of car windows’ in a 45 mile drive with 6. It never gets old.

Over the last month I have been working on the GTM’s engine tune. With more HP Tuners knowledge under my belt I have been focusing on fine tuning drivability, fuel efficiency, etc. I started from scratch, basically, and got the fueling (VE) and MAF airflow tables in line, making throttle response much crisper and smoother. I was able to ‘undo’ a lot of the things I tweaked last summer when I was just trying to get the motor to run and not stall at stops. Fuel economy is much better now that the motor is not running so rich at lower rpms. While tuning takes a lot of seat time to get data logs and results, that’s certainly not something I’ll complain about.

3 Responses to “Driving and Tuning”

  1. nsxguy7 Says:

    really, really want to know what color you painted the car…wow! it is stunning…

  2. admin Says:

    it’s a lambo color – all I’m going to say 😉

  3. nsxguy7 Says:

    ok I know…Thanks! And thanks for the killer website…im going to do a GTM next year…

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